# glibc64-241028/cfg - "Build" settings for package

#---------------------------------------------------------------------

[technotes]

1. "glibc##-######" conventions.

Each Laclin package tree, "/glibc64/pkg"  being one example,  contains
one or more system-library packages.

Presently, the packages have names similar to "glibc64-180826",  where
the 2-digits part represents an architecture (32 or 64) and the 6-dig-
its part represents a release number.

Note: Release number as in Laclin release of the package,  not release
of upstream "glibc".

The  release number usually represents a 6-digit date in "YYMMDD" for-
mat. However, this isn't an absolute rule.

There is also a symlink in $PRODTREE named  "glibc" that points to the
"glibc##-######" package that is presently in use. For example:

      glibc -> glibc32-180401

These remarks don't necessarily  apply to transitional distros such as
those constructed during initial cross-build steps.

The "cfg" file for  a "glibc##-######" package  always sets "defer" to
"glibc32 only" (for a 32-bit distro)  or to  "glibc64 only" (for a 64-
bit distro).

#---------------------------------------------------------------------

2. Rebuilding "glibc##-######".

A particular "glibc##-######" package is never rebuilt.  Instead, it's
replaced with a package that has a different name.

The rebuild process may, or may not, involve updating the  copy of up-
stream "glibc" itself that's used. Usually, "glibc" itself will not be
updated.

The steps involved are as follows:

* Go to the "/src" tree. Locate the package resource directory for the
copy of "glibc##-######" that is to be replaced.

* Rename  the  directory to use a higher, and unique,  6-digit release
number.

* Execute a command  similar to the following.  Modify the "##-180401"
part appropriately.

makelac glibc##-180401

If the build fails, stop here.

* Execute commands  similar to the following.  Modify the  "##-180401"
part appropriately.

cd /$LACARCH/pkg
ls -l glibc                 # Make a note of the old "glibc" link
/busybox32/bin/ln -nsf glibc##-180401 glibc
ls                          # Check to see if "ls" works

Disregard warnings,  if any,  about "locale" not being configured.  If
the "ls" command produces other errors, put the old symlink back:

                            # Use the old "##-######" string
/busybox32/bin/ln -nsf glibc##-180401 glibc

Otherwise, execute this command:

makelocale

* Do more tests to confirm  that the  new copy of  "glibc##-######" is
working.  If there are problems, put the old symlink back as discussed
before.

If  something goes wrong and you can't  put the old symlink  back from
within the distro, boot a rescue distro and use the rescue  distro  to
make the change.

#---------------------------------------------------------------------

3. When you're certain that the new  "glibc##-######" release is work-
ing correctly, take these additional steps:

* Replace "/$LACARCH/old-headers"  (substitute the  appropriate distro
tree  for "/$LACARCH"):

cd     /$LACARCH
chattr -i .
rm -fr old-headers
cp -a  /$LACARCH/pkg/glibc/include old-headers
chattr +i .

* Delete the old "glibc##-######" package tree  (substitute the appro-
priate directory path):

rm -fr /$LACARCH/pkg/glibc##-180401

#---------------------------------------------------------------------

4. In this package's "configure" block, "--libexecdir" shouldn't  spe-
cify  the  package's  "bin" or "sbin" directories.  If this  is  done,
"getconf" and/or other programs won't be built correctly.

#---------------------------------------------------------------------

5. This package  disables  "nscd" support.  This is necessary to avoid
"build" problems.

#---------------------------------------------------------------------

6. This package assumes  that  "/usr/src/linux"  contains  the  source
code,  including  header files,  for  the  Linux kernel  that is being
used.

If this isn't the case,  or if "rsync" hasn't been built yet, obsolete
kernel header files may  be stored  in the  "glibc##-######" directory
tree. This isn't necessarily a significant problem, but it may lead to
issues under some conditions.

#---------------------------------------------------------------------

7. Rebuilds done in Summer 2018:

      180624 180628 180704 180720 180815 180826

#---------------------------------------------------------------------

[buildtimes]

00.11 hours (or 006.80 minutes) - 2023 dedi Xeon E3-1200 v3  4x2  32GB
                                  RAM
00.14 hours (or 008.55 minutes) - ThinkPad L390 24GB RAM i5 4x2
00.16 hours (or 009.42 minutes) - ThinkPad W530 i7 4x2 32GB RAM
00.17 hours (or 010.38 minutes) - ThinkPad X1 Carbon 6G  i7  4x2  16GB
                                  RAM
00.34 hours (or 020.58 minutes) - HP EliteBook 8560w 32GB RAM
00.48 hours (or 029.03 minutes) - Dell Inspiron 6400 2.0 GHz Intel Duo
                                  7200 2GB RAM
02.85 hours (or 170.78 minutes) - Compaq 1.7 GHz Intel Pentium 4 512MB
                                  RAM

#---------------------------------------------------------------------

[settings]
configure  = none
defer      = glibc64
license    = See "license*.txt" in installed tree
licfile    = LICENSES
modsys     = no
multi      = yes
nosyslinks = yes                # Disable automated integration
nowerror   = yes
purge      = yes
tmpsize    = 250M
unpack     = relaxed

#---------------------------------------------------------------------

# Note:  This package is a  special case.  Technically,  it depends on
# several other packages. For example, "gcc731" and "chrpath"  or com-
# parable packages must be present.

# However,  "bootstrap" versions of the packages  (i.e., versions from
# another distro)  may  be  used.  Presently, the following  "depends"
# block should list "none".

[depends]
none
# rsync:forward

#---------------------------------------------------------------------

[build]
date
echo Starting glibc configuration procedure
SRCDIR=`pwd`

#---------------------------------------------------------------------
# Fix "limits.h" (this is a bit of a GNU mess).

pushd include
ln -nsf limits.h limits_glibc.h
ln -nsf limits.h limits_syslib.h

LH=`find $PRODTREE/gcc/ -name limits.h | grep install-tools`
if [ "@$LH" == "@" ]; then
    echo Error: gcc limits.h-1
    exit 1
fi
ln -nsf $LH limits_gcc.h

sed -e 's/include_next.*<limits.h>/include <limits_gcc.h>/' \
    -i limits.h
popd

#---------------------------------------------------------------------

export LANGUAGE=C               # "locale"-related setting
export LC_ALL=C                 # Ditto
unset  LANG                     # To be on the safe side
unset  LC_CTYPE                 # Ditto
export LACFINDLDSO=no           # Distro-dependent code

mkdir -p $PKGDIR_PROD/{bin,doc,etc,include}
mkdir -p $PKGDIR_PROD/{info,lib,sbin,share}

if [ 1 == 1 ]; then
    sed -e "s|cross_compiling=maybe|cross_compiling=yes|g" \
        -e "s|cross_compiling=no|cross_compiling=yes|g" \
        -i ../glibc-2.*/configure
    mkdir -p nscd
    touch    nscd/{nscd,nscd-client,nscd_proto}.h
fi

NSCDOPT="--disable-build-nscd --disable-nscd"

#---------------------------------------------------------------------

cd ..
rm -fr obj
mkdir  obj
cd     obj
mkdir -p $PKGDIR_PROD/etc

# LEXECDIR  specifies the  "--libexecdir"  setting  to be  used.  This
# shouldn't be the "glibc" "bin" or "sbin" directory.  If those direc-
# tories are used for "--libexecdir",  "getconf" and/or other programs
# won't be built correctly.

LEXECDIR=$PKGDIR_PROD/libexec
mkdir -p $LEXECDIR

#---------------------------------------------------------------------

# You may need  to  disable  "mathvec" to get  "glibc" bootstrapped on
# some platforms.

# Note: "gmic" requires "mathvec". As of mid-2018, we weren't aware of
# other supported packages that did.

DISABLE_MATHVEC=no

if [ "x$DISABLE_MATHVEC" == "xyes"; then
    MVECOPT="--disable-mathvec"
    sed -e 's/\(build-mathvec\) *= *[$]build_mathvec/\1=no/' \
        -i ../glibc-2.*/configure
else
    MVECOPT=
fi

#---------------------------------------------------------------------

OLDHEADERS=$LACSYSTREE/old-headers

bash ../glibc-2.*/configure \
    --prefix=$PKGDIR_PROD              \
    --build=$LACARCHBUILD              \
    --host=$LACARCHHOST                \
    $NSCDOPT $MVECOPT \
\
    --disable-profile                  \
    --disable-werror                   \
    --enable-add-ons                   \
    --enable-kernel=3.2                \
    --datadir=$PKGDIR_PROD/share       \
    --sysconfdir=$PKGDIR_PROD/etc      \
    --with-headers=$OLDHEADERS         \
    --without-gd                       \
    --without-selinux                  \
    --libexecdir=$LEXECDIR             \
    libc_cv_slibdir=$PKGDIR_PROD/lib

sed -e "s|^others.*+= zic-host|others += |" \
    -i  $SRCDIR/timezone/Makefile

#---------------------------------------------------------------------

date
echo Starting glibc \"make\" step

export LANGUAGE=C               # "locale"-related setting
export LC_ALL=C                 # Ditto
unset  LANG                     # To be on the safe side
unset  LC_CTYPE                 # Ditto

cd ../obj
smpmake || smpmake || make

#---------------------------------------------------------------------

date
echo Starting glibc \"make install\" step

touch     timezone/zic-host
chmod 755 timezone/zic-host
make install

#---------------------------------------------------------------------
# Need to do at least some of this again.

pushd $PKGDIR_PROD/include
ln -nsf limits.h limits_glibc.h
ln -nsf limits.h limits_syslib.h

LH=`find $PRODTREE/gcc/ -name limits.h | grep install-tools`
if [ "@$LH" == "@" ]; then
    echo Error: gcc limits.h-2
    exit 1
fi
ln -nsf $LH limits_gcc.h

sed -e 's/include_next.*<limits.h>/include <limits_gcc.h>/' \
    -i limits.h
popd

#---------------------------------------------------------------------

[postbuild]
echo Postbuild stage
XDIR=`pwd`

pushd $PKGDIR_PROD/lib
ln -nsf ld-2.*.so ld-linux.so.2
popd

cd $PKGDIR_PROD
rm -fr share/info
strip -g *lib/*.{a,o,so} 2> /dev/null || true
strip    *bin/*          2> /dev/null || true

echo "$PRODTREE/xorg/lib"    >> $PKGDIR_PROD/etc/ld.so.conf
echo "$PRODTREE/foreign/lib" >> $PKGDIR_PROD/etc/ld.so.conf
$PKGDIR_PROD/sbin/ldconfig
cp -p $PKGDIR_SPECIAL/nsswitch.conf $PKGDIR_PROD/etc/

#---------------------------------------------------------------------

INCDIR=$PKGDIR_PROD/include
mkdir -p $INCDIR

OK=true

NN=`which rsync 2>&1 | wc -l`
if [ "@$NN" == "@0" ]; then
    OK=false
fi

if [ \! -d /usr/src/linux ]; then
    OK=false
fi

if [ "@$OK" == "@true" ]; then
    pushd /usr/src/linux
    make headers_install ARCH=i386 INSTALL_HDR_PATH=$PKGDIR_PROD
    popd
else
    echo Warning: Not able to install Linux header files from source
    echo Using possibly obsolete copies instead

    cp -a $PKGDIR_SPECIAL/kernel-headers/* $INCDIR/
fi

#---------------------------------------------------------------------

# scsi/sg.h         is needed by hdparm
# scsi/scsi.h       is needed by gccgo
# scsi/scsi_ioctl.h is needed by vlc
# xlocale.h         is needed by perl

pushd $INCDIR
cp -a $PKGDIR_SPECIAL/moreinc/* .
rm -f `find . -type f -name .install`
rm -f `find . -type f -name ..install.cmd`
popd

#---------------------------------------------------------------------

mkdir -p $PKGDIR_PROD/lib
cd       $PKGDIR_PROD/lib
ln -nsf  ../share/locale .

cd $XDIR
P=$PKGDIR_PROD/share/i18n
rm -fr   $P
mkdir -p $P

cd localedata
cp -rp charmaps locales $P/
export I18NPATH=$P

#---------------------------------------------------------------------

cd $XDIR
mkdir tmptz
cd    tmptz
tar zxvf $PKGDIR_SPECIAL/tzdata2017b.tar.gz

P=$PKGDIR_PROD/share/zoneinfo
rm -fr $P
mkdir -p $P/{posix,right}

for tz in \
    etcetera southamerica northamerica \
    europe africa antarctica \
    asia australasia backward pacificnew \
    solar87 solar88 solar89 systemv
do
    if [ -f $tz ]; then
        zic -L /dev/null   -d $P       -y "sh yearistype.sh" $tz
        zic -L /dev/null   -d $P/posix -y "sh yearistype.sh" $tz
        zic -L leapseconds -d $P/right -y "sh yearistype.sh" $tz
    fi
done

cp  -p *.tab $P
zic -d $P -p America/Los_Angeles
rm -fr                           $PKGDIR_PROD/etc/localtime
cp     -p $P/America/Los_Angeles $PKGDIR_PROD/etc/localtime

ln -nsf $PKGDIR_PROD/bin/ldd       $LACSYSTREE/bin/
ln -nsf $PKGDIR_PROD/bin/ldd       $LACSYSTREE/xbin/

ln -nsf $PKGDIR_PROD/bin/sln       $LACSYSTREE/bin/
ln -nsf $PKGDIR_PROD/bin/sln       $LACSYSTREE/xbin/

ln -nsf $PKGDIR_PROD/bin/ldconfig  $LACSYSTREE/bin/
ln -nsf $PKGDIR_PROD/bin/ldconfig  $LACSYSTREE/xbin/

ln -nsf $PKGDIR_PROD/lib/*crt*.o   $LACSYSTREE/lib/

#---------------------------------------------------------------------

cd $PKGDIR_PROD/include
ln -nsf . glibc

#---------------------------------------------------------------------

cd $PKGDIR_PROD/lib/

rm -f                   libgcc_s.so*
cp -a $PRODTREE/gcc/lib/libgcc_s.so*  . || true

rm -f                   libstdc++.so*
cp -a $PRODTREE/gcc/lib/libstdc++.so* . || true

#---------------------------------------------------------------------

# Original URLs. These URLs were valid at one point, but may have died
# since then. If you download newer versions of tarballs [etc.], don't
# delete  the  original versions,  as you may not  be able  to replace
# them.

[urls]
url_debian  = tbd
url_home    = http://www.gnu.org/software/libc/

url_lfs     = http://www.linuxfromscratch.org/lfs/view/stable/\
chapter05/glibc.html

url_tarball = http://ftp.gnu.org/gnu/glibc/glibc-2.28.tar.xz

#---------------------------------------------------------------------

[history]
170501 Updated from 2.22 to 2.23
180311 Updated to 2.27
180826 Multiple rebuilds were done from 2018 to 2019
210126 Updated to 2.28
210612 Modified to fix a "lechromium" FTBFS